Added a little bit of form magic

src/main/webapp/templates/weatherstationView.ftl

@@ -92,7 +92,10 @@
 			</dl>
 			<#if weatherStation.weatherStationDataSourceId?has_content>
 			<h3>${i18nBundle.test} ${i18nBundle.dataSource?lower_case}</h3>
-			<form action="${weatherStation.dataFetchUri}" method="POST" target="new" class="form-horizontal" role="form">
+			<form action="${weatherStation.dataFetchUri}" method="GET" target="new" class="form-horizontal" role="form">
+                                <#list queryParams as queryParam>
+                                <input type="hidden" name="${queryParam.name}" value="${queryParam.value}"/>
+                                </#list>
 				<div class="form-group">
 					<label class="col-lg-4 control-label" for="elementMeasurementTypes[]">${i18nBundle.elementMeasurementTypes}</label>
 					<div class="col-lg-8">